CVE-2016-5771

Impact:
Moderate
Public Date:
2016-06-23
CWE:
CWE-416
Bugzilla:
1351173: CVE-2016-5771 php: Use After Free Vulnerability in PHP's GC algorithm and unserialize

The MITRE CVE dictionary describes this issue as:

spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data.

Find out more about CVE-2016-5771 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-php56-php) RHSA-2016:2750 2016-11-15
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-php56-php) RHSA-2016:2750 2016-11-15

Affected Packages State

Platform Package State
Red Hat Software Collections for Red Hat Enterprise Linux php55-php Will not fix
Red Hat Software Collections for Red Hat Enterprise Linux php54-php Will not fix
Red Hat Enterprise Linux 7 php Will not fix
Red Hat Enterprise Linux 6 php Will not fix
Red Hat Enterprise Linux 5 php53 Will not fix
Red Hat Enterprise Linux 5 php Will not fix
Last Modified

CVE description copyright © 2017, The MITRE Corporation